Icom IC-7610 Instruction Manual basic - Page 35

4 RECEIVING AND TRANSMITTING Noise Blanker The Noise blanker eliminates pulse-type noise such as the noise from car ignitions. The Noise blanker cannot be used in the FM mode. Push NB to turn the Noise Blanker ON or OFF. ••The Noise Blanker indicator on NB lights. The indicator lights. NOTE: When using the Noise Blanker, received signals may be distorted if they are excessively strong, or the noise is other than a pulse type. In that case, turn OFF the Noise Blanker, or shallow the DEPTH on the NB menu. See the instruction below for details. DDAdjusting the NB level and time To deal with various types of noise, you can adjust the attenuation level and the blanking depth and width in the NB menu. 1. Hold down NB for 1 second. ••Turns ON the Noise Blanker and opens the NB menu. 2. Touch the adjusting item. 3. Rotate MULTI to adjust the item. (Example: 8) 4. Push MULTI to set and close the NB menu. LEVEL (Default: 50%) Adjust the level where the Noise Blanker activates between 0 and 100%. DEPTH (Default: 8) Adjust the noise attenuation depth between 1 and 10. WIDTH (Default: 50) Adjust the blanking duration time between 1 and 100. Noise Reduction The Noise Reduction reduces random noise components and enhances signal audio. 1 Push NR to turn the Noise Reduction ON or OFF. 2 ••The Noise Reduction indicator on NR lights. 3 4 5 The indicator lights. 6 7 DDAdjusting the Noise Reduction level Adjust the Noise Reduction level to where noise is 8 reduced but the received signal is not distorted. 9 1. Hold down NR for 1 second. ••Turns ON the Noise Reduction and opens the NR menu. 10 2. Rotate MULTI to adjust the Noise Reduction level to between 0 and 15. 11 LAdjust to a higher level to increase the reduction level, and to a lower level to decrease it. 12 13 14 15 16 Noise Reduction OFF NR level 0 Noise components Noise Reduction ON NR level 4 17 Desired signal (CW) 18 19 20 21 3. Push EXIT to close the NR menu. 4-5